Meeting Reminder; EDXL-RIM & RDF: Fwd: RE: Em TC Call Needs YourGuys!

[Rex Brooks <rexb@starbourne.com>]

(Note: This is the third of three messages I will 
be sending out today relating to our meeting 
tomorrow. This one is a forward of a message to 
Alessandro that I thought the group might find 
useful in regard to how RDF can be useful for us.)

>Date: Fri, 30 May 2008 06:29:08 -0700
>To: "Alessandro Triglia" <sandro@oss.com>
>From: Rex Brooks <rexb@starbourne.com>
>Subject: RE: Em TC Call Needs Your Guys!
>Cc:
>Bcc:
>X-Attachments:
>
>Hi Alessandro,
>
><snip--just stuff about last week's activities>
>
>RDF is well suited to a number of uses. OWL uses 
>it to formulate ontologies, for which it is 
>essential, but RDF Schema is particularly 
>well-suited to capturing relationships such as 
>"TargetArea is a member of the the Geospatial 
>Information category." So RDF "triples" can 
>capture category information to relate 
>taxonomies or controlled vocabularies to one 
>another, especially mapping equivalent terms 
>from one ValueListURN to another for our 
>purposes. (This is the major chunk of work some 
>party needs to do to make EDXL specifications 
>work across jurisdictional boundaries.)
>
>(Note: in terms of expressiveness, the decision 
>was taken by the Semantic Web Activity in W3C to 
>start with triples because the process of 
>developing resources internet-wide could proceed 
>much faster, and we now have triple stores in 
>the millions, approaching if not passing the 
>billion mark. However, eventually we have to 
>graduate to quads and higher-order tuples since 
>sequential triples [to describe 
>interrelationships in commutative and transitive 
>algebraic logic] is a major pain when we need 
>more expressive relationships. One of the 
>software geniuses I work with has a system that 
>is lightyears ahead of this, but it darn near 
>requires a government to afford it and hire 
>enough top-shelf admins and service-writers to 
>deploy it. However, it can telescope research 
>from hours to seconds, days to hours, months to 
>days, etc. I get the sdk when I can make it work 
>on one of my machines. Right now I could only 
>install the latest version 3.9 on a clean VM. I 
>don't have a 4 GB RAM system I can dedicate to 
>it. Wish I did! It just barely works on my 2 GB 
>RAM box in VMWare. It uses a dedicated SQL 
>Server 2005 db, [plus freemind concept-maps for 
>ad hoc ontological modeling], etc...
>
>That's one of the major semantic services I plan 
>to include in the IRSC SOA-RR under the covers, 
>so to speak. OWL-DL (Description Logic) is well 
>suited to taking RDF Schemas and specifying the 
>logical relationships between between 
>taxonomies. OWL-DL is the most computationally 
>useful way to specify hierarchical relationships 
>of the parent-child (inheritance) type because 
>it lends itself to machine-based commutative 
>(inference) reasoning.
>
>When you start studying OWL, I suggest you also include studying
>Protégé http://protege.stanford.edu/ a free, 
>open source semantic editor with the OWL Plug-In 
>as an RDF/OWL editor,
>Pellet http://pellet.owldl.com/  a free, open-source reasoner and
>RacerPro a commercial adaptation of an early 
>open source toolset, e.g. a server-based 
>reasoner system.
>
>Cheers,
>Rex
>
>
>>
>>>  -----Original Message-----
>>>  From: Rex Brooks [mailto:rexb@starbourne.com]
>>>  Sent: Tuesday, May 27, 2008 13:01
>>>  To: Alessandro Triglia
>>>  Subject: RE: Em TC Call Needs Your Guys!
>>>
>>>  Darn! Have fun, Alessandro,
>>
>>
>>Sorry, Rex.  In the last two days I was in West Virginia for a meeting with
>>a customer.  It was an 8-hour drive each way.  I am sorry I missed the calls
>>on Tuesday and Wednesday.  How did it go?
>>
>>By the way, I finally found some time to read the W3C RDF primer.  I already
>>thought that RDF must be a nice technology (without knowing it), but it's
>>even nicer than I expected.  I am thinking RDF is a very good foundation for
>>representing information.  I am also thinking that it could even be used as
>>a foundation for data exchange, with some advantages over the traditional
>>schema-oriented (grammar-oriented) approaches.  But it probably requires a
>>different level of thinking from what most developers are used to.
>>
>>Alessandro
>>
>>
>>>
>>>  Cheers,
>>>  Rex
>>>
>>>  >Rex,
>>>  >
>>>  >I apologize.  I cannot attend the meetings today.  I will be
>>>  driving to
>>>  >West Virginia in half an hour.
>>>  >
>>>  >Alessandro
>>>  >
>
>
>--
>
>Rex Brooks
>President, CEO
>Starbourne Communications Design
>GeoAddress: 1361-A Addison
>Berkeley, CA 94702
>Tel: 510-898-0670


--
Rex Brooks
President, CEO
Starbourne Communications Design
GeoAddress: 1361-A Addison
Berkeley, CA 94702
Tel: 510-898-0670